Added logic for Blubrry Services to use alternative API servers to solve issue with session errors.

git-svn-id: https://plugins.svn.wordpress.org/powerpress/trunk@867251 b8457f37-d9ea-0310-8a92-e5e31aec5664
marked version 5.0.5 in app.

git-svn-id: https://plugins.svn.wordpress.org/powerpress/trunk@868142 b8457f37-d9ea-0310-8a92-e5e31aec5664